Adjustable gage for sewing machines



A. KALISH April 23, 1968 ADJUSTABLE GAGE FOR SEWING MACHINES Filed Sept. 21, 1965 l NVE N TOR. fiATA UA A444 4 flTrZeA Ey United States Patent 3,379,148 ADJUSTABLE GAGE FOR SEWING MACHINES Arthur Kalish, 949 43rd St., Brooklyn, N.Y. 11219 Filed Sept. 21, 1965, Ser. No. 488,983 1 Claim. (Cl. 112153) ABSTRACT OF THE DKSCLGSURE A magnetized member is provided with a pair of locating pins insertable in guide holes of a sewing machine table. The magnetized member is attracted to the ferrous material of the sewing machine table and is prevented from lateral displacement by the pins. A gage bar is slidable along the magnetic bar. The gage bar is held in a desired position along said member by a spring-actuated latch.

Background of the invention This invention relates to gages for sewing machines in general and particularly to an adjustable swinging gage for insuring any desired marginal edge on an article of fabric that is to be stitched.

Known adjustable gages of this type usually employ securing and adjusting screws which require the use of screwdrivers and other tools for their securement and adjustment from one to another position. Since the sewing machine operators are generally not mechanically inclined and are unfamiliar with mechanical tools and unable to secure and adjust gages for seam edges of various widths, it is necessary to employ specially trained personnel to make these securements and adjustments and to interrupt the production while making such adjustments, which is time-consuming and expensive.

An important object of the invention is to overcome the above disadvantages by providing a seam and raising gage, which employs no adjusting or securing screws, requires no special tools for its adjustment and securement to the machine and can be easily and quickly set by the sewing machine operator for a desired distance from the needle of the machine, without interrupting production for any substantial length of time.

A further object of the invention is to provide a device of the above described character wherein the securing and adjusting means comprise a magnetic member and a gage rod provided with a gage face, displaceable relative to said magnetic member and means for locating said magnetic member in a predetermined position on the sewing machine table or plate to prevent the displacement of the magnetic member which will otherwise definitely move, due to the vibration of the machine.

Yet another object of the invention is to provide a device of the above character, which may be used for attachments such as binders, buttonhole and button sewers.

Still another object of the invention is to provide a device of the above character which is easily detachable and which will present no danger of injury to the operators hands which are frequently injured by protruding adjusting and securing screws while the operator moves the hands about.

Another object of the invention is to provide a gage comprising a magnetic member which is provided with adjustable securing means to a sewing machine and the edge of which serves as a gage face.

Cir

Yet another object of the invention is to provide a device of the above character which is simple in construction, dependable in operation and which may be produced at a reasonable cost.

These and other objects of the invention will become apparent from the following description and the accompanying drawings illustrating an embodiment of the inventive concept.

In the drawings:

FIG. 1 is a perspective view of the device;

FIG. 2 is a cross-section taken on line 1111 of FIG. 1 and FIG. 3 is a perspective view of the device illustrating its use with a sewing machine.

An embodiment of the device is illustrated in FIGS. 1- 3. In this embodiment, a pair of magnetized rubber members 86, 86a, are hingedly secured to one another at 88, so that member 86a can be removed if desired. The magnetized rubber member 36 is attracted to the ferrous material of the sewing machine table 24. Slidable on these members are gage members of inverted U-shaped crosssection 90, 90a respectively. Each of the gage members is provided with a friction latch 92, 92a, having a hook portion 94, 94a, which engages frictionally with the rubber members 86, 86a, due to the tension of springs, such as the one shown by numeral 96 in FIG. 11. When it is desired to move either of the gage members 90, 90a, in either direction the respective hooks 94, 940, are disengaged from the magnetized rubber members by pressing the latches against the force of the spring 96. The rubber magnet member 86 is provided with a pair of pins 100, 109a, adapted to engage in the existing holes of a sewing machine table or slide, thus preventing the lateral displacement of member 86. After the gage members 90, 90:: have been moved to a desired position on the magnetized rubber members, the latches 92 are released, so that the hooks 94, act as friction brakes to prevent the displacement of the gage members 90, 90a.

I claim:

1. In a gage for sewing machines, at least one magnetic member provided with a pair of downwardly extending spaced pins adapted for attraction to and insertion in guide holes of a ferrous sewing machine table, a gage member longitudinally slidable along said magnetic member, spring actuated detent means exerting a force in one direction for holding said gage means in a desired position against said magnetic member, said gage means being disengageable from said magnetic member by the application of a counterforce on said spring means, said gage member being of inverted U-shaped cross-section and having top and side portions, one of said side portions having a slot therethrough, said detent means consisting of a friction latch having a hook portion engageable with said magnetic member, a pin secured in said top portion, said latch being pivoted on said pin and a spring mounted on said pin biasing said latch against said magnetic member.

References Cited UNITED STATES PATENTS 3,082,799 3/1963 Kennedy. 3,263,634 8/1966 Gross 112-153 JORDAN FRANKLIN, Primary Examiner.

' PATRICK D. LAWSON, H. H. HUNTER, Examiners. 

